JPH02105658A - Automatic answering telephone set - Google Patents

Abstract

PURPOSE:To perform adjustment with the operation of another terminal on a customer bus by issuing its own response message to a network only when no response message is received from another terminal. and starting up an automatic answering telephone set function. CONSTITUTION:An incoming call control part 51, when receiving an incoming call message from the network, judges whether or not communication designated by information in the incoming call message is telephone communication. Next, an incoming call limiting control part 52 started up by the incoming call control part 51 scans a monitor signal reception part 2 for a time decided in advance, and verify the presence/absence of the reception of the response message sent from another terminal. When no message is received within the time decided in advance, the response message is sent to the network, and an automatic answering telephone set function part 6 is started up, then, speech is started. In other words, an automatic answering telephone set starts a response operation to the incoming call in the telephone communication under the condition that plural terminals are connected on the customer bus 1 only when no response from another terminal is obtained within the time decided in advance.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an answering machine, and particularly to an answering machine, such as a l5DN.
Concerning answering machines that are used by connecting to a network.

[Conventional technology]

Answering machines used in so-called analog exchanges, such as conventional crossbar exchanges and electronic exchanges, have been accommodated in a relationship of one answering machine for one subscriber line. Therefore, when an incoming call is received from the analog exchange (network) side, the answering machine is automatically answered, taking into account only the conditions of the answering machine itself.

On the other hand, in order to cope with the advanced information and communication society, an integrated service digital network (ISDN) has been proposed that can simultaneously accommodate existing analog telephones, new high-speed data terminals, image terminals, digital telephones, etc. The CCITT (International Telegraph and Telephone Consultative Committee) has established a standard procedure for exchanging information between exchanges and terminals in such cases.
series was recommended at the end of 1984.

According to the I series regulations, up to eight terminal devices, for example, can be connected simultaneously to one bus extending from the I5DN exchange.

Therefore, digital telephones, facsimile machines, answering machines, information terminal devices, etc. may be connected to the same bus.

[Problem to be solved by the invention]

By the way, the above-mentioned conventional answering machine, for example,
Assume that it is connected to a digital subscriber line having a bus configuration such as DN. Terminal devices other than the answering machine are also connected to this bus, and when a call arrives, an incoming call message is sent in broadcast format to all terminals.

In the above-mentioned l5DN control procedure (I series), it is a promise that only the "communicable terminal" specified by the information in this incoming call message can send a call start message to the l5DN network and start a call. There is.

Under such a promise, a conventional answering machine automatically responds by considering only its own conditions (the answering machine), regardless of the presence or absence of other terminal devices. In other words, for example, even if there is a person near another terminal device accommodated on the same bus and ready to answer (in other words, even if the terminal device is not at home), the answering machine still answers the call. .

[Means to solve the problem]

The answering machine of the present invention includes an incoming message identifying means for receiving an incoming call from a network and identifying telephone communication designation information in an incoming message, and a message identifying means for identifying telephone communication designation information in an incoming call message, and an incoming call message that is registered in advance from the time of receiving an incoming call message on the above-mentioned signal channel. A response message monitoring means for monitoring the presence or absence of a response message from another terminal device within a time period; and a response message monitoring means for monitoring the presence or absence of a response message from another terminal device within a time period; The answering machine is equipped with a control unit that issues a message to the user and also controls the answering machine function to be activated.

In this way, during the pre-registered time (a certain period of time), there may be a response from other terminal devices, so the standby state is maintained, and if there is no response during this time, it is assumed that no one is present. Then, a response message will be issued in response to the incoming call.

Therefore, it is possible to ensure the original function of an answering machine, which is to answer when no one else is present.

〔Example〕

The present invention will be explained below based on illustrated embodiments.

FIG. 2 shows the answering machine of the present invention being installed on a private bus (e.g.
FIG. 2 is a diagram showing a home bus configuration when applied to the CCITT recommended I5DN user/network interface (basic interface). Here, the domestic bus has two communication channels and one signal channel.

In the figure, an in-home bus 1 includes an in-home terminating device 21 that terminates a subscriber line 20 extending from a network 10, and each terminal 30 to 3.
Connect X in multidrop format. The in-home bus 1 includes a pair of uplink lines 22 that transfer information from the terminal side to the network side,
Conversely, a pair of downlink lines 23 transfer information from the network side to the terminal side.
It is composed of. Answering machine 40 for l5DN
is installed on the home bus 1 at a position closest to the home termination device 21.

Next: The configuration and operation of an answering machine for 15DN will be explained using FIG.

In the figure, the up line 22 of the domestic bus l is connected to an up line interface section 24, and the down line 23 is connected to a down line interface section 25.

The uplink interface unit 24 multiplexes communication channels and signal channels, sends them to the uplink 22, and also performs reception from the uplink 22 and separation of monitoring signal channels.

The downlink interface section 25 performs reception from the downlink 23 and separates communication channels and signal channels. The monitor signal channel is connected to the monitor signal receiver 2,
The signal channel is connected to the signal transmitter/receiver section 3, and the speech channel is connected to the answering machine function section 6. The monitor signal receiving section 2, the signal transmitting/receiving section 3, and the answering machine function section 6 are connected to the control section 4. Here, the answering machine functional unit 6 is a general term for functional blocks specific to an answering machine, such as a recording tape recorder.

If the dialing key power section 5 is included in the answering number 7 telephone function section 6, it can also be used in common with it. Furthermore, if the display unit 7 for displaying the progress of the process is included in the answering machine function unit 6, it can also be used in common with the answering machine function unit 6.

Signals from the network are sent using a signal channel on the down line 23 of the home bus 1. The signal channels are separated by the downlink interface section 25, and the signals are extracted by the monk code transmitting/receiving section 3. The extracted signal is sent to the control section 4.

Conversely, when the control unit 4 sends a signal to the network, the control unit 4 sends the signal to the signal transmitting/receiving unit 3, where the signal is converted into a signal format to be sent to the network, and is sent to the uplink interface unit 24. . In the uplink interface unit 24, the signal is multiplexed with the speech channel and sent to the signal channel on the uplink 22 of the domestic bus 1. In addition, signals sent to the network from other terminals on the same in-house bus are on the up line 22, separated as a monitor signal channel by the up line interface section 24, and the monitor signal is extracted by the monitor signal receiving section 2. is,
It is sent to the control section 4. The control unit 4 includes an incoming call control unit 51, which includes an incoming call restriction control unit 52.

First, the operation when the incoming call control section 51 receives an incoming call message will be described.

When the incoming call control unit 51 receives an incoming call message from the network, the incoming call control unit 51 determines whether the communication specified by the information in the incoming message is a telephone communication, and if it is a telephone communication, starts the call. The message is sent back to the network, and the incoming call restriction control unit 5
Start 2.

A flowchart showing the operation of the incoming call restriction control section 52 is shown in FIG. In the figure, the incoming call restriction control unit 52 activated by the incoming call control unit 51 scans the monitor signal receiving unit 2 for a predetermined period of time (step ■), and detects the target incoming call. Verify whether a response message sent from another terminal in response to the message has been received (steps ■ and ■).

If the response message is not received within the predetermined time (step ■; Y), the response message is sent to the network.
), Step ■) to start the answering machine function section 6
A phone call (not shown) is started. In this way, a series of operations from receiving a call, receiving a response message, and starting the function as an answering machine is completed (step (2)).

Also, when verifying whether or not a response message has been received, if a response message is received within a predetermined time (step ■; Y), a message indicating that the above-mentioned process for the incoming call has been completed is displayed. 7 (step ■), and the series of processing is completed (step ■).

As is clear from the above explanation, under the condition that multiple terminals are connected to the home bus 1, other terminals respond to an incoming telephone communication call within a predetermined time. Only if you do not do so will the answering machine begin answering operations.

In this embodiment, a case has been described in which an answering machine is applied to the 15DN network. However, it is not limited to engineering SDN.
Of course, the present invention can also be applied to a switching network that accommodates a plurality of terminal devices in the form of a bus.

Further, the above-mentioned time width for opening during monitoring may be set by, for example, a dip switch in the answering machine, or may be arbitrarily set by the user from the key input section 5.

〔Effect of the invention〕

As explained above, the present invention enables coordination with the operations of other terminals on the home bus, which was not possible with answering machines with conventional functions. Therefore, for example l5DNi
This makes it possible to provide an answering machine even in remote areas.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the answering machine of the present invention, FIG. 2 is a block diagram of a home bus showing a system to which the answering machine of the present invention is applied, and FIG. 3 is a diagram showing when the answering machine of the present invention receives a call. 2 is a flowchart showing the operation of FIG. 1... Domestic bus, 2... Monitor signal receiving unit (incoming message identification means), 3... Signal transmitting/receiving unit, 4...
Control unit (response message monitoring means), 6...Answering machine function unit, 10-...Network, 21...
...In-home terminal equipment, 40...Answering machine, 5
1...Incoming call control B (incoming message identification means)
52... Incoming call restriction control unit (response message monitoring means).

Claims (1)

[Scope of Claims] In a home terminal device connected to a subscriber line including a signal channel and a speech channel extending from the network, an incoming call is sent from the network to identify the telephone communication designation information in the incoming call message. a call message identifying means; a response message monitoring means for monitoring the presence or absence of a response message from another terminal device within a pre-registered time from the time when the incoming call message is received on the signal channel; An answering machine characterized by comprising a control unit that issues its own response message to a network and activates an answering machine function only when there is no response message from another terminal device.